Heat Recovery Ventilation

Heat Recovery ventilation (HRV) is a complete supply and extract system where the ventilation rate is controlled via supply and extract fans. It consist of a heat exchanger where the extracted stale air is crossed with the supply air where the energy stored in the air is transferred from the high side to the low side hence the heat recovery term.

There are several types of heat exchangers, plate heat exchangers (only sensible heat*) and paper heat exchangers (sensible and latent*)

Efficiency of heat exchangers are the ratio of heat transferred from the low side to the high side. Plate heat exchangers efficiency is sensible efficiency only and would require drains, while paper heat exchangers are sensible and latent and would not require drains.

Capturing this waste energy means the heating/ cooling requirements of the building are reduced, so smaller size plant can be selected, savings can be made in long term energy consumption, and carbon emissions are reduced.

The SAF recovers heat energy which would otherwise be exhausted to atmosphere, and uses this energy to warm the air entering the building. The reverse happens in warmer climates, where the exhausted cool air is used to partially cool the incoming air.

Easy and less frequently to clean filter system (6 - 12 months before the filters need cleaning - the system informs you!)

The HRV unit can be installed in any position (horizontal / upside-down / vertical or even at an angle)

Fresh air without losing heat

Clean fresh air all year round

Inexpensive to run

Simple and easy to use

About Us

Howecool is a small family owned business established in 1999 that cares about you our clients and our environment. We are based in Yorkshire, where the M62 meets the A1M perfectly situated to serve all Northern England.